nanocore | 5c74634f1a47adb7daf3d1c3bd1bdd86dddeaf869d93a0a43560847fc7bd0e92

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2025, 18:37

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General

Target
LigmaMario.exe
Size 436KB
Sample250222-w9srkawkfn
SHA256 5c74634f1a47adb7daf3d1c3bd1bdd86dddeaf869d93a0a43560847fc7bd0e92
MD5 f77577f0e36ff135ca4a2f54379c9c04
SHA1 c60ad4c2f9f156c22555922d2209e3b2e843641c
SHA512 29871862a643b7f117efcfdec0c6fb5e1b424ac41a4ed212dbe92899de41ee61c50f0bc259957b4c22c9ec4bba1c642671be3298b7db1a5f98f17e3d8acc591f
SSDEEP 6144:CkmGOiD1Gva8ooQz2l73M8cYDKoAX+PhmVsGBn/99vl2ITtwEMmWhG1:4TW8oB2l3Mt2X4MmVskLN2ITlMzG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

192.168.1.51:54984
127.0.0.1:54984

Mutex

6c6b774f-88c0-4072-9a76-294c9fb59461

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-12-04T20:07:27.130829536Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
54984
default_group
Default
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2530
max_packet_size
1.048576e+07
mutex
6c6b774f-88c0-4072-9a76-294c9fb59461
mutex_timeout
5006
prevent_system_sleep
false
primary_connection_host
192.168.1.51
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SAAS Manager = "C:\\Program Files (x86)\\SAAS Manager\\saasmgr.exe"	RegAsm.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2684 set thread context of 2776	2684	LigmaMario.exe	87

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SAAS Manager\saasmgr.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\SAAS Manager\saasmgr.exe	RegAsm.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LigmaMario.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1188	schtasks.exe
2056	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2776	RegAsm.exe
2776	RegAsm.exe
2776	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2776	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	RegAsm.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2776	2684	LigmaMario.exe	87
PID 2684 wrote to memory of 2776	2684	LigmaMario.exe	87
PID 2684 wrote to memory of 2776	2684	LigmaMario.exe	87
PID 2684 wrote to memory of 2776	2684	LigmaMario.exe	87
PID 2684 wrote to memory of 2776	2684	LigmaMario.exe	87
PID 2684 wrote to memory of 2776	2684	LigmaMario.exe	87
PID 2684 wrote to memory of 2776	2684	LigmaMario.exe	87
PID 2684 wrote to memory of 2776	2684	LigmaMario.exe	87
PID 2776 wrote to memory of 1188	2776	RegAsm.exe	88
PID 2776 wrote to memory of 1188	2776	RegAsm.exe	88
PID 2776 wrote to memory of 1188	2776	RegAsm.exe	88
PID 2776 wrote to memory of 2056	2776	RegAsm.exe	90
PID 2776 wrote to memory of 2056	2776	RegAsm.exe	90
PID 2776 wrote to memory of 2056	2776	RegAsm.exe	90

C:\Users\Admin\AppData\Local\Temp\LigmaMario.exe
"C:\Users\Admin\AppData\Local\Temp\LigmaMario.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SAAS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp298C.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1188
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SAAS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp29FA.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp298C.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp298C.tmp
Size 1KB
SHA256 0c1b5f67eeb276d1d4205b138ce32bc6149924e02281a2db8e4623a700e88f15
MD5 48ef7fa9033389ad7929d7a6b9d10298
SHA1 9db6cb7325c8bdf66a15f7b5f34703709a45aeb6
SHA512 ac8bd104ecbacc9bccce9e087f67e5b18072d59367ccd31d4e66132b6baaea520cba5b9b59464483d86abf74826b382c402f12e9a586c99bda8c78a0de33944e
MD5 SHA1 SHA512

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tmp29FA.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp29FA.tmp
Size 1KB
SHA256 f769b73883f96cefd35c438e8bdbe12c10a87ce11e09e4084474a85f6e4f8a10
MD5 b5ee6d4d0a6aab49e12d44d82afc5157
SHA1 9fbe67452ca81b59802441955020086c3d163b2c
SHA512 c4071b68c40aedd04b48bcbf4c4256e8b746474c6d4cfe680a4c0bcd61c9c4daa45d5d1e2fc8df655feba77de485258d06a81ac1a9144ed37ab9c80fbce09754
MD5 SHA1 SHA512

Submit Download

memory/2684-5-0x0000000005690000-0x0000000005706000-memory.dmp

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memory/2684-2-0x0000000005A80000-0x0000000006024000-memory.dmp

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memory/2684-4-0x0000000005440000-0x000000000544A000-memory.dmp

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memory/2684-0-0x000000007489E000-0x000000007489F000-memory.dmp

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memory/2684-6-0x0000000074890000-0x0000000075040000-memory.dmp

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memory/2684-7-0x000000007489E000-0x000000007489F000-memory.dmp

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memory/2684-8-0x0000000074890000-0x0000000075040000-memory.dmp

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memory/2684-9-0x00000000055C0000-0x00000000055FC000-memory.dmp

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memory/2684-10-0x0000000005650000-0x000000000566E000-memory.dmp

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memory/2684-1-0x0000000000A80000-0x0000000000AF4000-memory.dmp

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memory/2684-13-0x0000000074890000-0x0000000075040000-memory.dmp

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memory/2684-3-0x0000000005390000-0x0000000005422000-memory.dmp

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memory/2776-15-0x0000000004DE0000-0x0000000004E7C000-memory.dmp

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memory/2776-14-0x0000000074890000-0x0000000075040000-memory.dmp

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memory/2776-11-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2776-23-0x0000000005010000-0x000000000501A000-memory.dmp

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memory/2776-24-0x0000000005020000-0x000000000503E000-memory.dmp

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memory/2776-25-0x0000000006090000-0x000000000609A000-memory.dmp

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memory/2776-26-0x0000000074890000-0x0000000075040000-memory.dmp

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